TTM19160 checking fixture has high measurement accuracy, no fear of deformation, low maintenance cost and good convenience. Key product characteristic inspection, characteristic line inspection, function hole inspection, area detection which is prone to deformation in assembly process, for automobile assembly and production function matching inspection. In the production process of automotive parts, on-line inspection of automotive parts is realized, which ensures the rapid judgment of the quality status of automotive parts in production, ensures the safety and processing speed of automotive assembly, and improves the quality of automotive parts.